Comprehensive Exams Statistics Concentration Information

 

The exam is closed book and notes and will be a three hour timed exam

 

The questions will be taken from information in the Regression, Design of Experiments and Sampling texts.

 

Students planning to take this concentration should e-mail Carole Bernett, cbernet1@depaul.edu  After April 1st but no later than April 15th.

 

Those planning to take the Actuarial Concentration should study their quizzes and exams from your instructor’s class. Contact me for more info if needed.  

 

Guidelines and Hints to Study for Statistics Concentration

 

Regression Portion:

 

This portion requires students to be able to derive simple linear regression parameter estimates and understanding of the bias and the variance of these estimators.  Students should be able to analyze and interpret printouts for proposed models  and test them for fit.  When to use transformations should also be reviewed. Dr.  Juan Hu also added that the students  should be able to read the outputs from SAS, know how to choose model, understand diagnostics and remedies.

 

Design of Experiments Portion:

 

Review the following:

Reasons for Randomization and use of blocking in designing scientific experiments.

Latin Square Designs

Factorial Designs

Meaning and uses of confounding 

Role of aliases

Computing EMS for a given model  for Mixed and Random Models

Analyses of Models from given ANOVA tables

Fractional Factorial Designs and their uses

 

Sampling Portion

 

Questions from the sampling course cover only the first couple of chapters on randomized experiments and with the finite population correction factor.   The students should also be familiar with determination of sampling sizes and confidence intervals to predict sample mean and proportion for randomized samples.  Students should also be able to compare differences between the main sampling techniques as random, stratified, cluster sampling and know when ratio estimation is appropriate.